A chapter takes 65 minutes to read. Express 65 minutes as an improper fraction of an hour in simplest form (1 hour = 60 minutes)
2 answers:
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Answer:
Eric's expression is :
and Andrea's is :
In Eric's expression, 20 represents the initial amount of substance with which he has started the experiment. is the amount of substance left after each time period (in this case, each week).The variable w in this case represents the number of weeks.
Andrea's expression can be written as :
The one outside of parentheses represents the initial amount of the substance. The one inside of parentheses represents 100% of the original amount of the substance. 0.5 represents the 50% of the substance that is lost each time period. The variable w in this case represents the number of weeks.
Answer:
0.13591.
Step-by-step explanation:
We re asked to find the probability of randomly selecting a score between 1 and 2 standard deviations below the mean.
We know that z-score tells us that a data point is how many standard deviation above or below mean.
To solve our given problem, we need to find area between z-score of -2 and -1 that is .
We will use formula to solve our given problem.
Using normal distribution table, we will get:
Therefore, the probability of randomly selecting a score between 1 and 2 standard deviations below the mean would be 0.13591.
All the attatchments include the directions below:
Prepare a two-way table as shown below.
Enter the number 50 in the two-way table
Prepare a column total and enter 68 for the total number of people who split the check.
The total number of people who do not eat desert are 56, and the total number of people who took the survey are 122. Enter both values.
The remaining values can be found out as shown below.
